﻿296 
  GEOLOGY. 
  

  

  is 
  that 
  of 
  sulphuretted 
  hydrogen, 
  which 
  the 
  water 
  contains 
  in 
  con- 
  

   siderahle 
  quantity; 
  the 
  taste, 
  that 
  known 
  to 
  belong 
  to 
  this 
  class 
  of 
  

   waters. 
  

  

  Specific 
  gravity, 
  1.00082. 
  

  

  Gaseous 
  contents 
  in 
  one 
  gallon 
  in 
  grains 
  : 
  — 
  

  

  Carbonic 
  acid 
  ....... 
  4.632 
  

  

  Sulphuretted 
  hydrogen 
  ..... 
  .481 
  

  

  Solid 
  contents 
  of 
  one 
  gallon 
  in 
  grains: 
  — 
  

  

  Chloride 
  of 
  sodium 
  47.770 
  

  

  Chloride 
  of 
  calcium 
  3.882 
  

  

  Chloride 
  of 
  magnesia 
  ...... 
  4.989 
  

  

  Protoxide 
  of 
  iron 
  ...... 
  4.712 
  

  

  Iodine, 
  a 
  strong 
  trace. 
  

   Chloride 
  of 
  potassium, 
  a 
  trace. 
  

   Organic 
  matter, 
  a 
  trace. 
  

   Alumina, 
  a 
  trace. 
  

  

  The 
  iron 
  doubtless 
  in 
  combination 
  with 
  both 
  the 
  sulphuretted 
  and 
  car- 
  

   bonic 
  acid 
  gases, 
  the 
  excess 
  of 
  the 
  carbonic 
  acid 
  holding 
  both 
  these 
  

   combinations 
  in 
  solution. 
  

  

  